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#ifndef UTT_H
#define UTT_H
enum {
Utt_trace_setup = 1,
Utt_trace_running,
Utt_trace_stopped,
};
struct utt_trace {
int trace_state;
struct rchan *rchan;
struct dentry *dir; /* systemtap/module_name */
struct dentry *dropped_file;
atomic_t dropped;
struct dentry *utt_tree_root; /* systemtap */
void *private_data;
};
#define UTT_TRACE_ROOT_NAME_SIZE 64 /* Largest string for a root dir identifier */
#define UTT_TRACE_NAME_SIZE 64 /* Largest string for a trace identifier */
/*
* User setup structure
*/
struct utt_trace_setup {
char root[UTT_TRACE_ROOT_NAME_SIZE]; /* input */
char name[UTT_TRACE_NAME_SIZE]; /* input */
u32 buf_size; /* input */
u32 buf_nr; /* input */
int is_global; /* input */
int err; /* output */
};
extern struct utt_trace *utt_trace_setup(struct utt_trace_setup *utts);
extern int utt_trace_startstop(struct utt_trace *utt, int start,
unsigned int *trace_seq);
extern void utt_trace_cleanup(struct utt_trace *utt);
extern int utt_trace_remove(struct utt_trace *utt);
extern int utt_overwrite_flag;
#endif
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